KR200357126Y1 - Electric pressure heat insulating rice cooker - Google Patents

Abstract

The present invention relates to an electric pressure heat cooker cooking and warming, and more particularly to an electric pressure heat cooker that can increase the warming effect by controlling the temperature more accurately.

The electric pressure insulating rice cooker according to the present invention is installed to be opened and closed on one side of the lid is open and the rice cooker body is installed in the outer receiving space; Various heaters built in the cooker main body to be positioned around the outer pot to heat the outer pot; An inner pot which is inserted into the outer pot and cooks and keeps warm by heat transmitted through the outer pot and various heaters; It is installed on the bottom side of the inner pot to measure the temperature of the inner pot, according to the cooking sensor for controlling the cooking temperature of the inner pot by allowing the microcomputer to control the operation of the various heaters; One side of the outer pot is installed to be in close contact with the bracket by measuring the temperature of the outer pot, according to the control of the operation of the various heaters made of at least one or more thermal insulation dedicated sensor for adjusting the warming temperature of the inner pot.

Description

ELECTRIC PRESSURE HEAT INSULATING RICE COOKER}

The present invention relates to an electric pressure heat cooker cooking and warming, and more particularly to an electric pressure heat cooker that can increase the warming effect by controlling the temperature more accurately.

In general, the electric pressure thermal cooker is a cooking utensil for cooking food that is not boiled at normal pressure in a short time by increasing the pressure in the pot by heating the pot in an enclosed space by an electric heater.

Figure 1 is a side cross-sectional view showing the main portion of the electric pressure insulation rice cooker according to the prior art.

In the conventional electric pressure thermal cooker as shown in Figure 1, the outer pot (4) is built in the main body 2, the outer pot (4) is installed on the bottom surface upper plate 6 and the outer pot ( 4) A side heater 8 and a top heater 9 are respectively installed on the outer circumference and the upper side, and the inner pot is cooked and warmed as it is heated by various heaters 6, 8, and 9 inside the outer pot 4. 10 is installed.

Here, the main body 2 is formed so that the upper surface is opened, the lid 1 is installed to be opened and closed on the upper surface, the top heater 9 is attached to the inside of the lid 1 is the lid (1) The top heater 9 is preferably positioned to cover the inner pot 10 when the main body 2 is closed.

Of course, the hot plate 6, the side heater 8 and the top heater 9 is connected to a control unit (not shown) to control the heat generated by the circuit, the temperature sensor 12 in the center of the hot plate 6 Is positioned, and the temperature sensor 12 senses the temperature of the inner pot 4 to control the operation of the hot plate 6 and the side heater 8 and the top heater 9.

Looking at the operation of the conventional electric pressure thermal rice cooker configured as described above, inserting the inner pot (10) containing the rice and water in the ratio of the appropriate amount into the outer pot (4), and then the control unit in the closed state of the lid (1) The operation of the hot plate 6 is controlled according to the program embedded in it, and thus the inner pot 10 is heated to allow cooking in the inner pot 10.

In this case, while the temperature sensor 12 is cooking, the temperature of the inner pot 10 is measured, and a microcomputer (not shown) is supplied to the hot plate 6 in consideration of the measured value of the temperature sensor 12. By controlling the heating degree of the hot plate 6 by turning on / off the current, the temperature of the inner pot 10 is adjusted to a relatively high cooking temperature.

When the cooking is completed in this way, the power supplied to the hot plate 6 is cut off, the power is supplied to the side heater 8 and the top heater 9 to maintain the temperature inside the inner pot 10 at a warming temperature While warming the rice inside the inner pot (10).

At this time, the temperature sensor 12 measures the temperature of the inner pot 10 while the insulation is in progress, and is supplied from the micom to the side heater 8 and the top heater 9 in consideration of the measured value. By controlling the degree of heating of each heater (8,9) by turning on / off the current, the temperature inside the inner pot (10) is adjusted to a relatively low thermal insulation temperature.

As described above, the conventional electric pressure thermal cooker measures the temperature of the inner pot 10 by the temperature sensor 12, and adjusts the current supply to the various heaters (6, 8, 9) accordingly, While cooking is in progress, the temperature of the inner pot 10 in direct contact with the hot plate 6 is measured, and accordingly, the temperature inside the inner pot 10 is directly controlled by controlling the current supplied to the hot plate 6. It is possible to measure and control the cooking temperature accurately because the inside is maintained at the cooking temperature by controlling the temperature, while the side heater 8 and the top heater 9 have a predetermined heat insulation space during the warming process. The internal temperature of the inner pot 10 is indirectly controlled by measuring the temperature of the lower portion of the inner pot 10 installed inside, and controlling the current supplied to the side heater 8 and the top heater 9 accordingly. Keep at warm temperature Since it is difficult to accurately measure and control the temperature insulation because I have to improve the insulation performance limits.

The present invention has been made to solve the above problems of the prior art, the purpose of providing an electric pressure thermal cooker that can improve the thermal insulation performance by directly measuring and controlling the thermal temperature around the inner pot during the thermal insulation proceeds. have.

Figure 1 is a side cross-sectional view showing the main portion of the electric pressure insulation rice cooker according to the prior art;

Figure 2 is a side cross-sectional view showing the main portion of the electric pressure insulation rice cooker according to the present invention;

3 is an enlarged cross-sectional view of the main part of FIG. 2.

<Explanation of symbols on main parts of the drawings>

51: lid 52: body

54: pot 56: hot plate

58: side heater 59: top heater

60: inner pot 62: cooking sensor

64: thermal insulation sensor 66: bracket

68: bracket holder 69: screw

Electric pressure insulation rice cooker according to the present invention for solving the above problems is installed to be openable and open on one side of the lid open and the cooker body is installed in the outer receiving space; Various heaters built in the cooker main body to be positioned around the outer pot to heat the outer pot; An inner pot which is inserted into the outer pot and cooks and keeps warm by heat transmitted through the outer pot and various heaters; It is installed on the bottom side of the inner pot to measure the temperature of the inner pot, according to the cooking sensor for controlling the cooking temperature of the inner pot by allowing the microcomputer to control the operation of the various heaters; One side of the outer pot is installed to be in close contact with the bracket by measuring the temperature of the outer pot, according to the control of the operation of the various heaters is composed of at least one or more thermal insulation sensors for adjusting the warming temperature of the inner pot.

Hereinafter, with reference to the accompanying drawings an embodiment of the present invention will be described in detail.

Figure 2 is a side cross-sectional view showing the main portion of the electric pressure thermal cooker according to the present invention cut, Figure 3 is an enlarged flat cross-sectional view of the main portion of FIG.

Electric pressure insulating rice cooker according to the present invention is the outer surface as shown in Figures 2 and 3 and the outer pot (54) with excellent heat transfer performance is built into the main body 52 and the receiving space formed therein and the main body (52) The lid 51 is installed on the upper surface so as to be open and close, and various heaters 56, 58, and 59 are mounted around the outer pot 54, and the inner pot 60 is cooked to the outer pot 54. It is installed to be inserted, the bottom side of the inner pot 60, the cooking sensor 62 for controlling the operation of the various heaters (56, 58, 59) to adjust the cooking temperature of the inner pot (60) is installed and In addition, the outer circumference of the outer pot 54 is provided with at least one thermal insulation sensor 64 for controlling the operation of the various heaters (56, 58, 59) to adjust the thermal insulation temperature of the inner pot (60).

Here, the outer pot 54 is fixed to the receiving space inside the main body 52, the various heaters 56 and 58 to heat and cook the inner pot 60 around the outer pot 54 to be cooked and warmed , 59 is mounted, specifically, the plate-shaped hot plate 56 is installed on the bottom of the outer pot 54, the side heater 58 is wound around the outer pot 54 and the lid is installed When the top heater 59 is installed inside the 51 and the lid 51 is closed to the main body 52, the top heater 59 is installed to cover the upper side of the inner pot 60 and the hot plate 56. ) And the side heater 58 and the top heater 59 is connected to the microcomputer (not shown) so that the circuit can be controlled to control the operation.

Next, the inner pot 60 is made of a material having excellent heat transfer performance similar to the outer pot 54, and is formed smaller than the outer pot 54 so that the inner pot 60 can be inserted into the outer pot 54.

At this time, the inner pot 60 is installed so that the bottom surface is placed on the hot plate 56 and the upper end is caught on the top of the outer pot 54, the top heater 59 when the lid 51 is closed. Is installed to cover the top of the outer pot 54 and the inner pot 60 at the same time.

Next, the cooking sensor 62 is a kind of temperature sensor, which is installed to be positioned at the center of the hot plate 56 to measure the bottom side temperature of the inner pot 60, and the microcomputer includes various heaters in consideration of the measured value. The cooking temperature of the inner pot 60 is adjusted by turning ON / OFF the current supplied to the 56, 58, 59.

Of course, the cooking sensor 62 measures the bottom side temperature of the inner pot 60 not only during the cooking operation but also during the warming operation, and in consideration of the measured value, the microcomputer provides various heaters 56, 58, and 59. Insulating performance can be improved by turning on / off current.

Next, the thermal insulation sensor 64 is also a temperature sensor such as a thermostat or thermistor, and is installed to be in close contact with the bracket 66 on one side of the outer pot 54 to measure the temperature of the outer pot 54. In addition, by directly controlling the ON / OFF operation of the various heaters (56, 58, 59) to adjust the warming temperature of the inner pot (60).

At this time, the thermal insulation sensor 64 is preferably installed at a position spaced apart from the side heater (58) installed to be wound around the outer pot (54), the heat plate 56 and the side heater only during the warming operation It is preferable to control the ON / OFF operation of the 58 and the top heater 59.

Of course, the thermal insulation sensor 64 controls the ON / OFF operation time intervals of the various heaters 56, 58, 59 according to the amount of rice contained in the inner pot 60, various heaters 56, 58 The inner pot 60 is kept at a constant temperature by the air heated in a predetermined heat insulating space between the inner pot 60 and the outer pot 54 even if the predetermined time is OFF.

In particular, the thermal insulation sensor 64 is fixed to be in close contact with the outer circumference of the outer pot 54 by the bracket 66, as shown in Figure 3, the outer pot 54 is installed only the thermal insulation sensor 64 The bracket holder 68 is welded or riveted to one side of the lower side, and the lower end of the bracket 66 is fixed to the bracket 69 with the screw 69, and the upper end of the bracket 66 is the thermal insulation sensor ( While supporting both ends of the 64), press to the outer pot (54) side and fixed to be in close contact.

Looking at the operation of the present invention configured as described above are as follows.

First, the inner pot 60 containing a proper amount of rice and water is inserted into the outer pot 54 so that the bottom surface is placed on the hot plate 56, and the cooking operation while the lid 51 is closed The hot plate 56 is heated by the operation of the control unit, and thus heat generated from the hot plate 56 is transferred to the cooking inner pot 60, thereby completing cooking.

Of course, as well as the hot plate 56 and the side heater 58 and the top heater 59 during the cooking operation to operate the entire cooking inner pot 60 can be cooked with a better rice taste.

As such, the cooking sensor 62 measures the temperature at the bottom side of the inner pot 60 during the cooking operation, and the microcomputer makes the hot plate 56 or the side heater 58 and the top heater in consideration of the measured value. The current supplied to the 59 is turned on / off, and the current supplied to the hot plate 56 is controlled to maintain the inside of the inner pot 60 at a relatively high cooking temperature by turning on / off the current supplied to the hot plate 56.

When cooking is completed as described above, the side heater 58 and the top heater 59 are heated by the operation of the controller while switching from the cooking operation to the warming operation, and thus the side heater 58 and the top heater ( The heat generated from 59 heats the outer pot 54, and the heat of the outer pot 54 heated by the various heaters 56, 58, and 59 is formed between the outer pot 54 and the inner pot 60. The air inside the heat insulation space of the, it is possible to keep the rice to be uniformly applied to the entire inner pot 60 by the internal air heated in the heat insulation space in this way.

Of course, not only the side heater 58 and the top heater 59 but also the hot plate 56 may be operated to evenly heat the inner pot 60.

As such, the thermal insulation sensor 64 measures the temperature on the outer circumference of the outer pot 54 and the temperature of the air on the heat insulation space surrounding the inner pot 60, and accordingly the hot plate 56 during the warm operation. The on / off operation of the current supplied to the side heater 58 and the top heater 59 is directly controlled. The on / off operation of the current supplied to the side heater 58 and the top heater 59 is mainly controlled. By controlling the inside of the inner pot 60 to maintain a relatively low temperature warming temperature.

In addition, the cooking sensor 62 is also operated together with the thermal insulation sensor 64 during the warming operation to measure the bottom side temperature of the inner pot 60, and the microcomputer makes the hot plate 56 in consideration of the measured value. Alternatively, the current supplied to the side heater 58 and the top heater 59 may be controlled to maintain the inside of the inner pot at a uniform warming temperature by turning on / off current.

Of course, even if the current supplied to the various heaters (56, 58, 59) during the warming operation is cut off because the inner pot 60 is surrounded by the heated air of the insulation space around it can maintain a constant warming temperature for a predetermined time.

Therefore, only the warming-only sensor 64 is operated during the warming operation, or the cooking-only sensor 62 and the warming-only sensor 64 are simultaneously operated to accurately measure the temperature around the inner pot 60, and accordingly By controlling the operation of the heaters 56, 58, and 59 directly or by the microcomputer, the inner pot 60 may be maintained at a uniform thermal insulation temperature, thereby further improving thermal insulation performance.

Electric pressure insulating rice cooker according to the present invention configured as described above is attached to the cooking sensor only at the bottom of the inner pot, and the insulation sensor is attached to the outer circumference of the outer pot positioned so as to be spaced outside the inner pot, the cooking sensor only when cooking By measuring the temperature of the inner pot accurately, the microcomputer controls the current supplied to the hot plate in consideration of the measured value, and accurately measures the temperature around the inner pot by the dedicated sensor for keeping warm during operation. Since it is possible to control the current supplied to the top heater, etc., it is possible to maintain the warming temperature accurately during the warming operation, thereby improving the warming performance.

Claims (5)

A rice cooker body which is installed to be opened and closed on one surface of which the lid is opened and which has an outer pot installed in the inner receiving space; Various heaters built in the cooker main body to be positioned around the outer pot to heat the outer pot; An inner pot which is inserted into the outer pot and cooks and keeps warm by heat transmitted through the outer pot and various heaters; It is installed on the bottom side of the inner pot to measure the temperature of the inner pot, according to the cooking sensor for controlling the cooking temperature of the inner pot by allowing the microcomputer to control the operation of the various heaters; The pressure is installed on one side of the outer pot to be in close contact by measuring the temperature of the outer pot, according to the control of the operation of the various heaters according to the electrical pressure, characterized in that made of at least one thermal insulation sensor for adjusting the warming temperature of the inner pot Warm rice cooker. The method of claim 1, The cooking sensor only detects the temperature of the inner pot during the cooking operation, in consideration of the detection value of the cooking sensor, the electric pressure thermal rice cooker to turn on / off the current supplied to the various heaters. The method of claim 1, The cooking sensor exclusively detects the temperature of the inner pot during cooking and warming operation, in consideration of the detection value of the cooking sensor, the electric pressure thermal rice cooker to turn on / off the current supplied to the various heaters. . The method of claim 2 or 3, The thermal insulation sensor is an electric pressure thermal cooker, characterized in that the ON / OFF the current supplied to the various heaters at predetermined time intervals according to the temperature of the outer pot during the warming operation. The method according to claim 1 or 4, The bracket has a lower end screwed to a bracket holder fixed to the outer circumference of the outer pot, and the upper end is pressed to keep the thermal insulation sensor close to the outer pot by pressing the thermal insulation sensor toward the outer pot side. Warm rice cooker.